Magnetic effects in an itinerant electron antiferromagnetic Cr+1.72at.%Fe alloy single crystal

The spin-density wave properties of polycrystalline chromium thin films were determined by using infrared reflectivity to determine the gap energies. The incommensurate spin-density wave of bulk chromium is highly sensitive to perturbations from stress, disorder, and finite size effects, such as those found in polycrystalline films. Films prepared under various conditions display three different types of spin-density wave behavior: incommensurate, commensurate, and mixed. Unexpectedly, the mixed phase includes the incommensurate spin-density wave and two different forms of commensurate spin-density wave. A phenomenologically determined low-temperature phase diagram is created to describe the spin-density wave in chromium in the stressdisorder plane. The effects of stress and disorder on the spin-density wave of chromium films are analogous to the effects of dilute alloying in bulk chromium. In this case, tensile stress has a similar effect to Mn impurities, while disorder has a similar effect to Al.

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Resonant impurity scattering and electron-phonon scattering in the electrical resistivity of Cr thin films

Boekelheide

Cooke

Helgren

et al. 2009

Phys. Rev. B

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Magnetic effects in an itinerant electron antiferromagnetic Cr+1.72at.%Fe alloy single crystal

Abstract: Unusual magnetic effects in an itinerant electron antiferromagnetic Cr-Pt alloy single crystal

Cited by 1 publication

References 10 publications

Resonant impurity scattering and electron-phonon scattering in the electrical resistivity of Cr thin films

Resonant impurity scattering and electron-phonon scattering in the electrical resistivity of Cr thin films

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